... )Size:M3-M76 3)Finish:Tin,Nickel,Chrome stainless steel lock washer1) Standard: DIN, BS, IFI, JIS, ISO,GB,ANSI,ASME ... , Hot-dip Galvanizing.etc.5) Shape: round , square , curved , taper, cup, bowl or according to your request.6) Surface Condition: remove ...